Yes. Two US prseidents have been impeached: Andrew Johnson in 1868 and Bill Clinton in 1998. In both cases, however, the Senate lacked the necessary votes to remove the president from office.
Impeachment of Henry Dundas happened in 1806.
Richard M. Nixon was never impeached. After being assured he would be found guilty in a US Senate impeachment trial, he resigned before that happened on 9August 1974.
He resigned before they could start impeachment.
He was not impeached.
Impeachment
Articles for the impeachment of Richard M. Nixon were filed. He resigned before certain impeachment occurred.
The US House of Representatives can bring impeachment charges against the President. If such charges are brought (which has happened twice in US History), then the Senate can vote to convict and remove the President by a 2/3 vote (which has never happened).
Johnson's impeachment was very important.
the answer is impeachment
Impeachment means to bring a formal charge of criminal wrongdoing against an elected official (you are thinking of the President). It does NOT mean trying them. The House of Representatives conducts Impeachment proceedings. If the President were impeached by them (has happened 2 times) then the President would be tried by the Senate.
Impeachment.
2/3